Multilayer Thickness Measurements below the Rayleigh Limit Using FMCW Millimeter and Terahertz Waves. - Nina S. Schreiner; Wolfgang Sauer-Greff; Ralph Urbansky; Georg von Freymann; Fabian Friederich (Sensors, 2019)

The Conjugate Gradient Least Square Algorithm in Terahertz Tomography. - Karl H. May; Andreas Keil; Georg von Freymann; Fabian Friederich (IEEE Access, 2021)

A Priori Information and Off-Axis Measurements in Terahertz Tomography. - Karl H. May; Andreas Keil; Georg von Freymann; Fabian Friederich (IEEE Access, 2023)

Coherent Off-Axis Terahertz Tomography with a Multi-Channel Array and f-theta Optics. - Karl H. May; Shiva Mohammadzadeh; Andreas Keil; Georg von Freymann; Fabian Friederich (Sensors, 2024)